Release v0.6.0 · ledgerwerk/ledgercore

Full Changelog: v0.5.1...v0.6.0

[0.6.0] - 2026-07-27

Added DestinationPrecondition dataclass for typed before-state fingerprints
Added MigrationPhase and MigrationItemState enums for schema-3 state machine
Added Schema3MigrationJournal, Schema3ItemJournalState, Schema3ConfigSwitchState dataclasses
Added write_schema3_journal and _parse_schema3_journal for schema-3 TOML persistence
Added StorageMigrationHooks for lifecycle callbacks (quiescence, staged/activated validation, finalize)
Added MigrationLock for advisory project migration locking
Added _check_same_filesystem and _validate_same_filesystem for cross-filesystem detection
Added _durable_rename for fsync-backed atomic renames
Added render_ledger_manifest and render_ledger_local_config for pure TOML rendering
Added strict plan-structure validation (_validate_plan_structure) for migration_id, policies, strategies, kinds
Added stage/backup collision detection in _check_path_overlaps
Added source fingerprint population during planning

Changed file fingerprints (sha256-file-v1) to be path-independent (content hash only, no filename)
Changed fingerprint failures to fail closed: state='invalid' instead of 'owned' with missing fingerprint
Changed config inspection to check parent binding even when file is absent
Changed noop-if-exact to compare against expected_target_fingerprint (not before-state)
Changed replace-owned to use expected_before.fingerprint for before-state validation
Changed executor to call validate_storage_migration_plan before first journal write

Fixed fail-open validation where fingerprint errors allowed owned+replaceable state
Fixed missing config file bypassing foreign parent detection
Fixed unknown destination policies/strategies falling through to default action